refactor(scheduling): improve reason text, fix classification, polish detail view

- Classification: qualified requires actual completionRate >= 100% (not just predicted)
- Reason text: structured two-column layout (客户日均 | 考核周期剩余)
- Conclusion line in red bold (预估无法达标，需替换 / 已达标，建议换上未达标车辆)
- Remove verbose subtitle from candidate section
- Remove redundant middle line (预估考核期里程 vs 考核里程)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/modules/scheduling/SuggestionDetail.tsx

@@ -83,26 +83,45 @@ export default function SuggestionDetail({ suggestion: s, onClose, onNotifySucce
             </div>
           </div>
 
-          {/* Reason */}
-          <div className="px-4 py-2 text-[11px] text-slate-500 leading-relaxed border-b border-slate-100 bg-amber-50/50">
-            <span className="text-amber-700 font-bold">建议：</span>
-            <span className="text-slate-600">{s.reason}</span>
+          {/* Reason — structured lines */}
+          <div className="px-4 py-2.5 border-b border-slate-100 bg-slate-50/60 space-y-1">
+            {s.reason.split('\n').map((line, i) => {
+              const isConclusion = line.startsWith('!!');
+              const text = isConclusion ? line.slice(2) : line;
+              if (isConclusion) {
+                return (
+                  <div key={i} className="mt-1.5 pt-1.5 border-t border-slate-200">
+                    <span className="text-xs font-bold text-rose-600">{text}</span>
+                  </div>
+                );
+              }
+              // Split by | for two-column layout
+              if (text.includes('|')) {
+                const parts = text.split('|').map(p => p.trim());
+                return (
+                  <div key={i} className="flex items-center justify-between text-[11px] py-0.5">
+                    <span className="text-slate-600">{parts[0]}</span>
+                    <span className="text-slate-600">{parts[1]}</span>
+                  </div>
+                );
+              }
+              return (
+                <div key={i} className="flex items-center gap-1.5 text-[11px] py-0.5">
+                  <span className="w-1 h-1 rounded-full bg-slate-300 flex-shrink-0" />
+                  <span className="text-slate-600">{text}</span>
+                </div>
+              );
+            })}
           </div>
 
           {/* Candidates */}
           <div className="px-4 py-3">
-            <div className="flex items-center justify-between mb-1">
+            <div className="flex items-center justify-between mb-2.5">
               <span className="text-xs font-bold text-slate-700">
-                {isRescue ? '从库存调入替换' : '换上以下里程少的车'}
+                {isRescue ? '建议替换车辆' : '建议替换车辆'}
               </span>
               <span className="text-[10px] text-slate-400">{s.candidates.length} 辆可选</span>
             </div>
-            <div className="text-[10px] text-slate-400 mb-2.5">
-              {isRescue
-                ? '以下车辆快达标，换到当前客户处利用剩余天数即可冲线'
-                : '以下车辆里程缺口大，换到该高里程客户处可加速达标'
-              }
-            </div>
 
             <div className="space-y-2">
               {s.candidates.map(c => {